Synthetic polymer fracturing fluid weighted by sodium formate enables fracture stimulations in Ultra-High pressure and High-Temperature reservoir

被引：5

作者：

Yang, Xiaojiang ^{[1
,2
]}

Chen, An ^{[1
]}

Mao, Jincheng ^{[1
]}

Zhang, Chong ^{[1
,3
]}

Wang, Juanjuan ^{[3
]}

Fu, Meitao ^{[1
]}

Zhang, Hu ^{[4
]}

Wang, Junjian ^{[3
]}

Song, Xianshi ^{[3
]}

Zhang, Yang ^{[1
]}

Lin, Chong ^{[1
]}

机构：

[1] Southwest Petr Univ, State Key Lab Oil & Gas Reservoir Geol & Exploitat, Chengdu 610500, Peoples R China

[2] Sinopec Zhongyuan Oilfield Co, Puyang 457001, Peoples R China

[3] Sinopec Northeast Oil & Gas Branch, Petr Engn Environm Technol Res Inst, Changchun 130000, Peoples R China

[4] Sichuan Green & Top Technol CO LTD, Chengdu 610500, Peoples R China

来源：

FUEL | 2023年 / 353卷

基金：

中国博士后科学基金; 中国国家自然科学基金;

关键词：

HCOONa weighted fracturing fluid; Gel breaker; Mild multi-step oxidation reaction; RUTHENIUM-CATALYZED OXIDATION; PRIMARY ALCOHOLS; CERIUM;

D O I：

10.1016/j.fuel.2023.129170

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

Weighted fracturing fluid was considered to be one of the key technologies to deal with the challenge of abnormally high pressure and ultra-high temperature reservoir stimulation in the case of existing fracturing equipment. In this work, a thickener polymer Pt-Fb that meets the requirements of fracturing fluid weighting by HCOONa was synthesized. And HCOONa- weighted fracturing fluid with delayed crosslinking characteristics and good friction reduction performance was developed based on the polymer Pt-Fb. It is much cheaper than CHKO2weighted guar gum fracturing fluid. The density of HCOONa-weighted fracturing fluid was up to 1.3 g/cm3. The fracturing fluid proposed in this study meets the temperature resistance and shear resistance requirements of 170 degrees C and 170 s  1. Besides, a complete gel breaking was obtained by using NaBrO3, and the internal mechanism was investigated from both experimental and theoretical aspects. It was revealed that a mild multi-step oxidation reaction enables NaBrO3 to break the HCOONa-weighted fracturing fluid.

引用

页数：9

共 45 条

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